Lipoatrophy

My six year old is on a pump and she is having trouble with lipoatrophy - we had stopped using her upper butt area because of it 2 years ago and the fat has not returned - now we are seeing it in her arms and legs (the sites we are currently using) - does anyone have any advice for this? The doctor and diabetes educator say it will get better as she grows and gets more fat - has anyone seen that happen?

Celeste